Electric switch.



W. DRAKE & L. G. HATCH.

ELECTRIC SWITCH.

APPLICATION FILED JAN. 21,1907.

Patented Apr. 6, 1909.

2 SHEETS-SHEET 1.

KT/r

F anuzntozs Waff e)" 177ml? 1,2315 6) l/aiob W. DRAKE & L. O. HATCH.

ELECTRIC SWITCH.-

APPLIOATION FILED JAN.21,1907.

Patented Apr. 6, 1909.

2 SHEETS-SHEET Z,

with can? 45 I the contacts 4, has one end pivoted to an upstanding linkments in Electric Sw tches, of which t e fol-I AND LISLE O. HATCH, OFBLACK. EARTH, WISCONSIN.

. WALTER nearer;

' Specification of Lease meat.

Application filed January 21,1967. serial bio. 353,382.

To all whom it may concern: j

Be it known that WG,"VVALTER DRAKE and LISLE C. Hsrcu,-- citizens ofthe, United.

States, residing at BlackEarth, in the county of Dane and State ofWisconsin, have in vented certam new. and useful .Im rovelowing is aspecification.

Ournnvention relates to improvements 1n cut outs for fuse-boards fortelephone switches. Its objects are principally to pro- 1'5 is a I vblade attachment. F 1g. 6 1s a fuse boarid 1 having known type like barS'suitablybev'eled to form a and arranged in vertical alincment, and

after full vide for grounding the current in cases 0 emergency, anceortliundcr storr'n, "and to' carry out that. end in a simple, ready andellcctive manner. j v

Said invention consists of certain features or instrumentalitiessubstantiallyas hereinl out by t is claims.

In the accompanying drawing illustrating the preferred embodiment of ourinvention Figure l'is a side elevation, Fig 2 is a plan view, and Fig. 3is a cross-section thereof. Fig. l is also a side view with the'part'sin position as in grounding'the'current.' Fig. detached side viewof the lever and detached plan view. of the spring-retaining latch forsaid lever. Fig. 7 is'a'vertical transverse section taken through saidlever and latch;

In racticingour invention, we employ a the usual equipment of metalliccontacts 2, adjunctivefuse connections Slattached thereto, and contacts4 of uniform height or approximately of-uniform size wired as at 5 tothe aforesaid connections, said contacts 2 bein wired as at 6 to thetelephone switch-boar (not shown) and said contacts 4' having connectedthereto wires 7' leading to the ground, 'all' of well in thisconnection. A latelade standing normally out of engagement with 9 inturn pivoted to an outstanding bracket a fixed to one end of saidfuse'board, 1, said'bladc having its opposite end pivoted to the upperend of the vertical arm of a right-angled lcver'10. Said bladehas-suitably applied to one side thereto, as by gluing or otherwise,preferably hard rubber; insulation 11 ior obvious purposes.

as during an electrical .disturbr isclosed andspeciiicall'y pointed.

Said right-angled lever 10 is fulcrumedatits angle between the branchesof av bifurcated Patented April 6,1909.

bracket 12 fixed to the opposite endof the fuse-board 1, said leverbeing'also rounded at its angle mto cam-form asst late latch 14' oardand projecting beyond it. The carnformation 13 has a slight'sh0ulder15which is so arranged that, as the lever 10 is moved so as to depress theblade 8 and bring it into engagement with the contacts 4 as in moving.the same shoulder, Will'becngagcd with the forward edge of thespring-plate latch 14. and. thus retainsaid lever in such ositio'n bythe stress-0f said catch as disc osed by Big. 4:. Said latch has alateral arm l6 at its forward .freeend for itsconvenient'depression, asin disengaging the ccrrespondin edge of latch from the shoulder 150i t1e cam-forma tion of the lever 10, which becomes necessary in order todepress said lever for oppositely allccting or elevating ing thegroun-d-connecti on, as will-be readily apparent, Also-it will be notedthat, after ellecting such disengagement o'f-parts the v 13 and adapted.to bear normalliyxat that oint upon a springed to t ie-underside ofsaid the blade 8, as in breaksaid 15 .sriring-pl'zttlatch will instantlyspring into I engagement with the heel of the" cam 13 and thus deliverits stress-0r pressure thereon for theautornatic retention .0 togetherwith the blade 8, in inoperative f the lever l0,

positio'n. I This device is therefore simple, readily applied and quicrly operated for 1ts intends P PQ 1'. An rality of approximate tacts, ablade supported at either end, ally. mounted supports connects blade -atorslear each ly uniform size conthelatter and with it simultaneouslyengage the several contacts. I" 2.3m electric ,switch'comprising aplurality of approximately uniformsize c0111 tacts," a blade supportedat either end, ivotally mounted supportsconnected wit blade at or neareach end, a handle connected with one of said sppports for swingingl'thelatter and with it causing (the blade to l siniultaneously en agethe several contacts,

1 and wit the I I end, and a'han'dle con- 5 nectedwith one-of-said'supports for swinging the lectric switch comprising; a plu-- iivotcausing the bladeto a latch for loclsing the blade position.

3. A device 01" the character described, In testimony whereof we aflixour sigma eomprismg a depressible blade having one t'ures, inpresenee oftwo witnesses.

end pivoted tone-link itself pivoted in p0si 519311, a right anglfadlever fulcrumed at its angle and having a shoulder at said angle;

and. a spring-latch havinga lateral actuating Witnesses arm andefl'ective for engagement with mid HARRYM. HOBBINS, shnulder. V 0 W;DONKLE.

